The oil guide is a bit out of shape at the end but otherwise seems useable - the earlier type 11203-323-000 is available but priced at a hefty £30.85 to order from DS.
My later engine number (CB500E-2010986) should have 11203-323-010 that appears to be no longer available.
TBH I do not know what part I have it was retained in the old engine casing by the threaded bolt - manual shows a self taper 5x16 - my casing does not have a 5 mm thread so intend to fit the correct taper screw.
The guide looks as though it diverts oil to the main shaft needle roller bearing. Will I be okay to re-fit the oil guide - if not would the earlier part number fit?
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PXL_20230519_113027305 by
Macabe Thiele, on Flickr